Preheat oven to 350 degrees and spray a bundt pan with cooking spray
In a medium Bowl pour the apple pie filling in it and run a sharp knife through it and cut the apples in small pieces. Set aside
Mix the sugar and cinnamon in a bowl or ziplock bag
Open the cinnamon rolls and reserve the icing
Cut all of the cinnamon rolls in four pieces
Coat the cinnamon rolls in the sugar mixture and discard what is left of the sugar mixture
Place 1/3 of the quartered cinnamon rolls in the bundt pan
Layer half of the diced apples on top of that
Layer another 1/3 of the cinnamon roll fourths
Layer the other half of the apples
Layer the last of the cinnamon rolls on top.
In a small sauce pan melt the butter and add the brown sugar and cinnamon. Keep on medium heat until it starts to bubble
Pour the hot mixture evenly over the cinnamon roll layers
Give the bundt pan a few taps on the counter to allow the brown sugar mixture to seep down a bit
Bake in a preheated oven 55 minutes
Remove the bundt pan from the oven and let it cool 15 minutes
Invert the bundt pan onto a cake plate
Drizzle the reserved icing over the top.